scholarly journals Researches on Technical Improvement of Rice Culture on Ill-drained Fields : V. Studies on the physiological characteristics of rice varieties as related to the resistance against yield-fall : (5) Varietal differences in H2S-oxydation activity of rice roots

1958 ◽  
Vol 26 (3) ◽  
pp. 193-194 ◽  
Author(s):  
Hisao YAMAGUCHI ◽  
Koji SHIRATORI ◽  
Reiko HATANO
Keyword(s):  
Physiological Characteristics ◽  
Rice Varieties ◽  
Technical Improvement ◽  
Rice Culture ◽  
Varietal Differences ◽  
Rice Roots

Agronomic and physiological characteristics of high‐yielding ratoon rice varieties

2021 ◽  
Author(s):  
Qiang Zhang ◽  
Xiangchen Liu ◽  
Guilong Yu ◽  
Hao Wang ◽  
Daqing Feng ◽  
...  
Keyword(s):  
Physiological Characteristics ◽  
Rice Varieties

scholarly journals Changes in microbial biomass and grain yield of rice varieties in response to the alternate wet and dry water regime in the inland valley of derived savanna

2019 ◽  
Vol 64 (3) ◽  
pp. 239-253
Author(s):  
Adeniyi Soretire ◽  
Olalekan Sakariyawo ◽  
Oyinkansola Yewande ◽  
John Adesodun ◽  
Aderonke Akintokun ◽  
...  
Keyword(s):  
Microbial Biomass ◽  
Grain Yield ◽  
Water Regime ◽  
Field Experiments ◽  
Lowland Rice ◽  
Microbial Count ◽  
Rice Varieties ◽  
Microbial Biomass Nitrogen ◽  
Varietal Differences ◽  
Derived Savanna

This investigation tested the hypothesis that the alternate wet and dry (AWD) water regime would increase soil microbial biomass carbon (MBC), microbial biomass nitrogen (MBN) and microbial count. Variations in MBC, MBN and grain yield could be due to varietal differences in a derived savanna. Experiments (both pot and field ones) were conducted at the Federal University of Agriculture, Abeokuta (Latitude 7? 12? to 7? 20? N and Longitude 3? 20? to 3? 28? E), Nigeria in 2015. In both trials, the treatments consisted of water regimes (continuous flooding [control] and AWD imposed on lowland rice varieties [NERICA?L-19])and Ofada [local check] at the vegetative growth stage in three cycles. The design in both trials was a completely randomised and randomised complete block design for the pot and field experiments respectively, with three replicates. In the screen house, MBC and MBN were significantly higher in AWD than in continuously flooded soil, especially at the beginning of the AWD cycles. This could have caused nutrient pulses to sustain the improved performance of lowland rice under AWD. A converse pattern was observed in the field in the third cycle. Ofada rice had a significantly higher microbial count and MBC (cycle 1) than NERICA L-19, however, a converse pattern was observed in MBC (cycles 2 and 3) and MBN (cycle 1). Composition of their rhizodeposition and timing of cycles could explain the observed varietal differences in MBC and MBN.

scholarly journals Effects of surface charge and chemical forms of manganese(II) on rice roots on manganese absorption by different rice varieties

2021 ◽  
Vol 207 ◽  
pp. 111224
Author(s):  
Hai-long Lu ◽  
Jackson Nkoh Nkoh ◽  
Md Romel Biswash ◽  
Hui Hua ◽  
Ge Dong ◽  
...  
Keyword(s):  
Surface Charge ◽  
Chemical Forms ◽  
Rice Varieties ◽  
Rice Roots
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